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Type 3 LITZ WIRE(利兹线)
“Litz” 一词源于德语“Litzendraht”, 意指一根导体是由多根独立绝缘的导体绞合或编织而成。典型应用有:高频电感器, 变压器, 变频器, 燃料电池,马 达, 通信及IT设备,超声波设备, 声纳设备,电视机,无线电设备,感应加热, 等等。1911年纽英伦公司成为美国第一家商业化生产利兹线的厂家。从那时开始至今纽英伦一直保持全球领导地位,为世界各地的客户提供高性能的利兹线产品及解决方案。也被音译为“李兹线”。
全国热线

186-6517-5918

T3 圆形:
每股漆包绞线绞合绝缘再多股绞合。可带绝缘外层。
绝缘外层材料:丝线,绝缘胶带,或其它挤出材料。
单股绞合绝缘束由T2 利兹线构成的多股绞合线束

典型应用举例

  • 磁悬浮列车
  • 航空母舰弹射系统
  • 特殊感应加热
  • 高频电感器
  • 变压器
  • 变频器
  • 燃料电池
  • 马 达
  • 通信及IT设备
  • 超声波设备
  • 声纳设备
  • 电视机
  • 无线电设备
NE - F1 UL Insulation System --- Major Components
NE-F1 UL ---
Magnet Wire (Winding Wire) 线 ( 线)
Category Components
Polyester MW30, MW35, MW73, MW74, MW76
Polyester (solderable) MW77, MW78
Polyurethane (solderable) MW79, MW80, MW82, MW83
NEWind® Winding Wire ETFE, FEP, PFA
Ground and Interwinding Insulation
Supplier Components
E.I. DuPont Kapton HN
Nomex 410, 414, 416, 418
PTFE
Rynite 530, FR530, FR530L, FR943
Zenite 6130
Sumitomo Bakelite E4008
PM-9630
PET Film
Varnishes
Supplier Components
John C. Dolph AC-43
BC-346A, BC-346B, BC-346-AN, BC-346F
BC359
BC365
CC-1105
Ripley Resin Engineering 468-2
Viking Products V1380FC
V1630FS



Litz Film Insulations

Insulation Rating AWG Advantages Considerations
Polyvinyl Formal Class 105
MW 15-C
14 - 50
  • Excellent abrasion resistance
  • Excellent compatibility with transformer oils
  • Good electrical properties
  • Used in Cryogenic Applications
  • Must be stripped before soldering
  • Should be annealed before application of varnish
Polyurethane Class 155
MW 79-C 

Class 180
MW 82-C
30 - 50


24 - 50
  • Excellent electrical properties for high Q coils
  • Easily solderable 390°C/360°C
  • Excellent film adhesion & flexibility
  • Good moisture & chemical resistance
  • Not recommended for applications with the possilbility of severe thermal overload
Polyurethane-Nylon Class 155
MW 80-C

Class 180
MW 83-C
10 - 46


25 - 46
  • Good electrical properties
  • Easily solderable 430°C/39°C
  • Excellent film adhesion & flexibility
  • Improved chemical & mechanical resistance from nylon topcoat
  • Nylon overcoat provides low coefficient of friction
  • Not recommended for applications with the possiblity of severe thermal overload
  • Nylon topcoat is hygroscopic
Solderable Polyester Class 180
MW 77-C
14 - 50
  • Solderable 470°C
  • Excellent thermal properties
  • Good electrical properties
  • Good compatibility with varnishes & solvents
  • Improved thermal overload
  • Good moisture resistance
  • Low abrasion resistance compared to Nylon & amide imide topcoat materials
  • Preheat before varnishing is recommended
Solderable Polyester
Nylon
Class 180
MW 78-C
14-50
  • Solderable 470°C
  • Excellent thermal properties
  • Good electrical properties
  • Good compatibility with varnishes & solvents
  • Improved thermal overload
  • Good moisture resistance
  • Nylon overcoat provides low coefficient of friction
  • Nylon topcoat is hygroscopic
  • Preheat before varnishing is recommended
Polyester(amide)(imide) Class 200
MW 74-C
34 - 44
  • Excellent flexibility & abrasion resistance
  • Excellent thermal overload
  • Excellent dielectric strength
  • Excellent moisture resistance
  • Good chemical resistance
  • Must be stripped before soldering
  • Not recommended for use in oil-filled transformers
  • Preheat before varnishing
Polyester/Poly-amideimide
Overcoat
Class 200
MW 35-C
8 - 33
  • Excellent flexibility & abrasion resistance
  • Excellent thermal overload
  • Excellent dielectric strength
  • Excellent moisture resistance
  • Good chemical resistance
  • Must be stripped before soldering
  • Preheat before varnishing
Polyimide Class 240
MW 16-C
10 - 30
  • Excellent flexibility
  • Excellent thermal overload
  • Excellent radiation resistance
  • Excellent chemical compatibility
  • High dielectric strength
  • Adequate abrasion resistance
  • Low outgas
  • Must be stripped before soldering
  • Must be annealed before varnishing
  • Will solvent craze
 

Litz Fiber & Tape Insulations

Insulation Recommended Max.
Operating Temperature
Advantages Limitations
Cotton 105°C
  • Low cost serving.
  • Good resistance to abrasion.
  • Poor space factor compared to Nylon or Celanese.
  • Non-solderable.
Nylon 155°C
  • Good space factor.
  • Excellent abrasion resistance.
  • Solderable.
  • Hygroscopic
Dacron®
(POLYESTER)
155°C
  • Good abrasion resistance.
  • Solderable.
  • Slightly higher maximum operating temperature than Nylon.
  • Better space factor than Cotton or Glass but poorer space factor than Nylon.
Nomex®
(HI-TEMP Aramid)
250°C
  • Good space factor.
  • Good electrical properties at high temperatures.
  • Non-solderable.
  • Higher cost than other fibers.
Glass 260°C
  • Good electrical properties at high temperatures.
  • Space factor equivalent to Cotton.
  • Non-solderable.


 
Tape Insulation Recommended Max. 
Use Temperature
Characteristics
Polyester (PET)
Mylar®
(heat sealable
grades available)
135°C
  • High dielectric strength.
  • Good abrasion often used as binder or moisture barrier under extruded jackets and textile serves or braids.
Nomex®
(aromatic polyamide)
200°C 
(Up to 220°C under
certain conditions.)
  • Excellent thermal properties.
  • Excellent electrical properties.
  • Excellent compatibility with varnishes adhesives and transformer fluids.
  • Thinner grades are flexible.
  • Good resistance to tearing and abrasion.
Polyimide Kapton®
(Heat sealable & adhesive
grades available)
240°C
(Up to 400°C under 
certain conditions.)
  • Very high dielectric strength.
  • Very good chemial resistance.
  • UL 94 V-0 flame rating.
  • Excellent mechnical properties.
Fiberglass Cloth Ultimate operating
temperature determined
by application &
glass type.
  • Excellent electrical properties at high temperatures.
  • Conformable.
  • Varnish compatible grades available.
  • Excellent solvent resistance.
Mica Ultimate operating
temperature determined
by application &
glass type.
  • Excellent electrical properties at high temperatures.
  • Flame resistant.
  • Retains useful electrical properties during & after exposure to fire.

NOTE: Dacron® Nomex® Mylar®and Kapton®are DuPont Registered Trademarks.
 
 

Extruded Insulations for Litz Conductors

Extruded Insulation Maximum
Temperature
Common Use Advantages
ETFE 155°C
  • Thin wall winding wire
  • High frequency interconnect
  • Primary in multi-conductor
  • Good winding characteristics
  • Better at tight bend than other fluropolymers
  • Excellent heat resistance
  • Excellent water/chemical resistance
FEP 200°C
  • Thin wall winding wire
  • High frequency interconnnect
  • Primary in multi-conductor
  • Excellent heat resistance
  • Outstanding water/chemical resistance
  • Outstanding flame retardancy
  • Low outgas
PFA 250°C
  • Thin wall winding wire
  • High frequency interconnect
  • Primary in multi-conductor
  • Excellent heat resistance
  • Outstanding water/chemical resistance
  • Outstanding flame retardancy
  • Low outgas
PE/PP 75°C
  • Litz Coax / Triax
  • Very good dielectric properties
  • Outstanding water resistance
PVC 105°C
  • Winding wire
  • High frequency interconnect
  • Primary in multi-conductor
  • Least expensive
  • Excellent flame resistance
  • Excellent flexibility
  • Medical grades
Polyurethane 90º - 105°C
  • High frequency interconnect
  • Excellent abrasion resistance
  • Very good flexibility
  • Can be coiled
  • Halogen free
Polyester 90º - 125°C
  • High frequency interconnect
  • Thin wall winding wire
  • Excellent abrasion resistance
  • Can be coiled
  • Excellent flex life characteristics
  • Halogen free
TPE 90º - 125°C
  • High frequency interconnect
  • Highly flexible grades
  • Medical grades
  • Light weight grades
  • Halogen free FR grades
Silicone 200°C
  • High frequency interconnect
  • High voltage interconnect
  • Outstanding Flexibility
  • Outstanding heat resistance
  • Medical grades
  •  

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